java split | （竖线） java split | （竖线）在java中,有一个字符串"866|10|1824261|214|",需要根据“|”截取。而直接用split("|");是不行的。原因是竖线 | 在正则中是特殊字符，需要转义，也就是split(“|”);但实际在java中使用时，又是java的特殊字符，需要转义，最终变成了split("\|");public static void main(String[] args) { String line = "866|10|1824261|214|"; String[] cells = line.split("\\|"); for(int i=0;i<cells.length;i++){ System.out.println(cells[i]); } }输出结果：866 10 1824261 214原文来自： CSDN

Flutter2.x 将Http请求结果转为Dart 在Flutter 2.x版本中将Http返回的结果转Dart稍微和前几个版本有些许差异，具体演示说明如下。Ps:在这里我用一个网上的开源api来示例请求接口地址：https://v1.hitokoto.cn/接口返回的Json对象如下：{ "id":3931, "uuid":"afc68395-6e1c-429c-b322-f1b7f4d43eba", "hitokoto":"嘿！活着是件很好的事", "type":"e", "from":"原创", "from_who":null, "creator":"Great old ones", "creator_uid":2073, "reviewer":0, "commit_from":"web", "created_at":"1538200036", "length":10 }json对应的类对象如下：class OneSentence { int id; String? hitokoto; String uuid; String? type; String? from; String? fromWho; String? creator; int? creatorUid; int reviewer; String? commitFrom; String? createdAt; int length; OneSentence( this.id, this.hitokoto, this.uuid, this.type, this.from, this.fromWho, this.creator, this.creatorUid, this.reviewer, this.commitFrom, this.createdAt, this.length); factory OneSentence.fromJson(Map<String, dynamic> json) { return OneSentence( json['id'], json['hitokoto'], json['uuid'], json['type'], json['from'], json['from_who'], json['creator'], json['creator_uid'], json['reviewer'], json['commit_from'], json['created_at'], json['length']); } Map<String, dynamic> toJson() { final Map<String, dynamic> data = new Map<String, dynamic>(); data['id'] = this.id; data['hitokoto'] = this.hitokoto; data['uuid'] = this.uuid; data['type'] = this.type; data['from'] = this.from; data['from_who'] = this.fromWho; data['creator'] = this.creator; data['creator_uid'] = this.creatorUid; data['reviewer'] = this.reviewer; data['commit_from'] = this.commitFrom; data['created_at'] = this.createdAt; data['length'] = this.length; return data; } } 请求http获取api结果：import 'dart:convert'; import 'dart:io'; import 'package:flutter/material.dart'; import 'package:flutter_demo/bean/OneSentence.dart'; class HttpPage extends StatefulWidget { const HttpPage({Key? key}) : super(key: key); @override _HttpPageState createState() => _HttpPageState(); } class _HttpPageState extends State<HttpPage> { String _text = ""; @override Widget build(BuildContext context) { return Scaffold( appBar: AppBar( title: Text("Http请求"), leading: GestureDetector( onTap: () { Navigator.pop(context); }, child: Icon(Icons.arrow_back), ), ), body: Container( child: Column( mainAxisAlignment: MainAxisAlignment.center, children: [ Expanded(child: ListView( children: [ Text(_text), ElevatedButton( onPressed: () => httpGet('https://v1.hitokoto.cn/', getOneSentence), child: Text('一言API')), ], )) ], ), ), ); } // 解析并转换 OneSentence getOneSentence(String res) { String _result = res; JsonCodec j = new JsonCodec(); OneSentence ons = OneSentence.fromJson(j.decode(_result)); setState(() { this._text = j.encode(ons.toJson()); }); return ons; } // 请求API并获取请求结果 void httpGet(String url, Function call) { HttpClient _httpClient = new HttpClient(); String _result = ""; _httpClient.getUrl(Uri.parse(url)) .then((HttpClientRequest request) => request.close()) .then((HttpClientResponse response) { if(response.statusCode == 200) { response.transform(utf8.decoder).join().then((value) { _result = value; call(_result); } ); } else { print('error'); _result = 'error'; call(_result); } } ); } }

Git Gui 设置语言为中文 Git Gui的英文界面如下：那么如何将该界面从英文切换到中文呢？在Git的安装目录中找到路径 \mingw64\share\git-gui\lib ，如下：如果lib目录中没有 msgs 目录和zh_cn.msg文件的（有的版本是直接把zh_cn.msg放在lib目录下），就手动创建该目录。如果有则无需创建。下载Git Gui语言文件：https://github.com/stayor/git-gui-zh下载好 Git Gui语言文件 后，将zh_cn.msg文件放入刚刚的msgs 目录中，如下：然后再次打开Git Gui，界面已经显示为中文。如下：

[Git]OpenSSL SSL_read: Connection was reset, errno 10054 早上再从Github上面clone代码的时候，提示 OpenSSL SSL_read: Connection was reset 。karry_bai@XA-Karry_Bai MINGW64 /f/Git $ git clone https://github.com/stayor/git-gui-zh.git Cloning into 'git-gui-zh'... fatal: unable to access 'https://github.com/stayor/git-gui-zh.git/': OpenSSL SSL_read: Connection was reset, errno 10054 经过一番资料查询，发现多数情况下国内访问 Github 会被和谐，有时候网络波动问题会导致推送失败。推荐使用 SSH 方式拉去代码或者参考 开源项目 修改本机 hosts 文件解决访问问题发现是Git开启了SSL认证。关闭SSL认证即可解决这个问题。解决办法：1、解除SSL认证git config --global http.sslVerify "false"2、更新DNS缓存ipconfig /flushdns3、文件过大，超过上限git config http.postBuffer 52428800034、用户名，邮箱问题查看用户名，邮箱git config user.name git config user.email修改，用户名，邮箱git config --global user.name "xxx" git config --global user.email "xxx"移除仓库，重新添加git remote rm origin git remote add origin https://github.com/XXX扩展资料：HelloGitHub 镜像站：https://raw.hellogithub.com/无需安装即可加快访问 GitHub 的方法，修改本地域名解析： https://raw.hellogithub.com/hosts

[VUE]"TypeError: Cannot read property 'validate' of undefined" 在Vue表单验证时出现以下报错信息：[Vue warn]: Error in v-on handler: "TypeError: Cannot read property 'validate' of undefined" ...... 在这里的formName需要和<el-form ref="formName" ...>保持一致才行。代码1：this.$refs[formName].validate((valid) => { ... }代码2：<el-form ref="ruleForm" label-width="120px" :model="ruleForm" :rules="rules" class="template-ruleForm"> <el-form-item label="签到主题" prop="title"> <el-input v-model="ruleForm.title"/> </el-form-item> <el-form-item label="设备终端名称" prop="deviceName"> <el-input v-model="ruleForm.deviceName"/> </el-form-item> ... <el-form-item> <el-button v-loading.fullscreen.lock="loading" type="primary" @click="saveForm('ruleForm')">保 存</el-button> </el-form-item> </el-form>但是如果formName写成类似formA这样的名称，还是会出现上面的错误，两个修改为一致的即可解决该问题。参考地址链接：https://www.jianshu.com/p/44352d1ea893

如何去掉vue路径中的“#”号 如何去掉vue路径中的“#”号我们在vue项目中使用vue-router时，路径中会有 # 号，这样看着也不舒服（例如“http://localhost:3000/#/”）。其实是因为路由有两种模式 hash 和 history，我们平时直接使用的是默认的hash，所以路径会有 # 号，因此我们只需要修改成 history 就可以了，如下图： 接下来就改了下vue-router的模式export default new Router({ mode: 'history', routes: [ ... ] })改成‘history’模式，‘#’就去掉了，很开心。然而打完包以后，页面是空白页。然后有修改了下路径[参考地址1]：https://blog.csdn.net/baby_dewo/article/details/109022595[参考地址2]：https://blog.csdn.net/weixin_39673051/article/details/111496340